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Finding the Fourth Proportional to 483,091.46, 666,748.21 and 279,260.54

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Solution

The fourth proportional to 483,091.46, 666,748.21 and 279,260.54 is: 385,426.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,091.46 : 666,748.21 = 279,260.54 : x
  2. Step 2: Convert to fraction form
    483,091.46/666,748.21 = 279,260.54/x
  3. Step 3: Cross multiply
    483,091.46x = 666,748.21 × 279,260.54
  4. Step 4: Simplify right side
    483,091.46x = 186,196,465,168.63
  5. Step 5: Solve for x
    x = 186,196,465,168.63/483,091.46
  6. Step 6: Final answer
    x = 385,426.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.